Patch "powerpc: Uncomment and make enable_kernel_vsx() routine available" has been added to the 4.2-stable tree

This is a note to let you know that I've just added the patch titled

powerpc: Uncomment and make enable_kernel_vsx() routine available

to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
powerpc-uncomment-and-make-enable_kernel_vsx-routine-available.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Leonidas Da Silva Barbosa <[email protected]>
Date: Mon, 13 Jul 2015 13:51:01 -0300
Subject: powerpc: Uncomment and make enable_kernel_vsx() routine available

From: Leonidas Da Silva Barbosa <[email protected]>

commit 72cd7b44bc99376b3f3c93cedcd052663fcdf705 upstream.

enable_kernel_vsx() function was commented since anything was using it. However, vmx-crypto driver uses VSX instructions which are only available if VSX is enable. Otherwise it rises an exception oops.

This patch uncomment enable_kernel_vsx() routine and makes it available.

---
 arch/powerpc/include/asm/switch_to.h |    1 +
 arch/powerpc/kernel/process.c        |    3 ---
 2 files changed, 1 insertion(+), 3 deletions(-)

@@ -29,6 +29,7 @@ static inline void save_early_sprs(struc
 
 extern void enable_kernel_fp(void);
 extern void enable_kernel_altivec(void);
+extern void enable_kernel_vsx(void);
 extern int emulate_altivec(struct pt_regs *);
 extern void __giveup_vsx(struct task_struct *);
 extern void giveup_vsx(struct task_struct *);

@@ -204,8 +204,6 @@ EXPORT_SYMBOL_GPL(flush_altivec_to_threa
 #endif /* CONFIG_ALTIVEC */
 
 #ifdef CONFIG_VSX
-#if 0
-/* not currently used, but some crazy RAID module might want to later */
 void enable_kernel_vsx(void)
 {
 	WARN_ON(preemptible());

@@ -220,7 +218,6 @@ void enable_kernel_vsx(void)
 #endif /* CONFIG_SMP */
 }
 EXPORT_SYMBOL(enable_kernel_vsx);
-#endif
 
 void giveup_vsx(struct task_struct *tsk)
 {

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/powerpc-uncomment-and-make-enable_kernel_vsx-routine-available.patch queue-4.2/crypto-vmx-adding-enable_kernel_vsx-to-access-vsx-instructions.patch